Researchers are reexamining common beliefs about ejaculation and fertility. While some trends suggest abstaining improves health, science is pointing in a different direction.

For years, people believed avoiding ejaculation could boost testosterone or fertility. However, experts say long periods without it may actually increase stress or low mood rather than provide benefits. Much of the old advice was based on assumptions rather than strong evidence.

New findings suggest that extended abstinence may harm sperm quality. A large review found that waiting too long between ejaculations was linked to reduced movement, lower survival rates, and more DNA damage. Over time, stored sperm may begin to deteriorate instead of staying healthy.

On the other hand, more regular ejaculation may support better reproductive health. By clearing out older sperm, the body can produce newer, healthier cells. Some scientists describe this process as keeping the system “refreshed,” helping maintain better overall function.

Other research connects this habit to broader health benefits. One long-term study found that men who ejaculated more frequently had a lower risk of prostate cancer compared to those who did so less often.

Scientists are still exploring the exact reasons, including the role of oxidative stress and how unused sperm lose energy over time. But overall, the evidence suggests balance is key.

Instead of long periods of abstinence, moderate and regular patterns may be more beneficial. While individual needs differ, current research supports consistency over extremes when it comes to reproductive health.